Harry gets a reward

"Ok, slut," Dudley says, shoving Ginny lightly, "On the bed."

Ginny flops down prone on the bed, and Dudley grins. "As for you," he adds to Harry, "if it hadn't been for you grabbing this bitch's wand I'd never have been able to make her mine. And for that, you deserve a reward. Get your little bitch-pussy on her face. I want her to eat you out."

Harry is suddenly conscious of the diaphragm inside her, and of Dudley's seed sloshing around her womb. She wonders if Ginny's tongue can get deep enough to touch the diaphragm.

A new thrill arising inside her, Harry obediently plants her knees on either side of Ginny's head, and lowers her pussy onto Ginny's face. At the same time, Dudley begins pulling off his pants.

From this angle Harry can't see Ginny's face, but she can feel her tongue flicking across her slit. Ginny doesn't seem particularly good, but Harry doesn't have a lot of room for comparison.

As Ginny's tongue delves into her pussy, Dudley pulls off his underwear, exposing his monstrous cock.

"I didn't take her earlier, you know," Dudley says conversationally as he steps forward. "I wanted you to watch, this first time." Dudley teased Ginny's pussy lips with his massive cockhead. "I wanted you to see it the first time I claimed her, the first time I filled her witch-womb with my seed."

Ginny moans into Harry's pussy, her tongue playing back and forth over Harry's clit and sending sharp bolts of pleasure through her body.

Dudley pushes his monster cock a few inches into Ginny's pussy, then lets out a sharp bark of laughter.

"What do you know!" he crows. "She's still a virgin!"

Dudley pulls back and then lunges forward, ramming his cock through Ginny's maidenhead and deep into her body. Ginny's body jerks beneath Harry and she lets out a long scream into Harry's muffling crotch.

"What do you think of that, cuz?" Dudley pants as he pounds Ginny's cunt. "I've taken the girl you wanted and made her mine. I'm going to fill her with my cum just like I did you, make you both my little breeding bitch witches, and it's all because you helped me take her wand."

The utter humiliation of Dudley's words blends with pleasure to push Harry over the edge. Her orgasm explodes outward from her crotch, and her vision goes white with the fierce pleasure of it. Her juice gushes out to cover Ginny's face, coating her in Harry's girl-cum. Her pussy clamps down on the diaphragm, and she almost thinks she can feel her womb tightening to squeeze Dudley's fertile sperm into her ovaries to do its job and get her pregnant with Dudley's incestuous spawn.